I tried to reproduce the segmentation fault on Buster / qbittorrent 4.1.5 with a few torrents and a hundred trackers added but to no avail. It makes me think that it is triggered by a singular combination of cpu speed and/or network speed and/or number of torrent/trackers and/or whatever else.
@Shirish: have you tried qbittorrent in bullseye or sid? Did you get the same crash? As I see in https://github.com/qbittorrent/qBittorrent/issues/9667, the problem might be related to Qt 5.11, so maybe it's gone in the current stable or newer version. Regards BZ
